Exposure
ID
GRAVI.2021-05-30T07:08:14.580_2
Header ID
GRAVI.2021-05-30T07:08:14.580
Date updated
2021-05-30 07:20:43 UTC+0000
Release date
2022-05-30 07:20:43 UTC+0000
UTC Start
2021-05-30 07:08:14.580
UTC End
2021-05-30 07:13:34.580
MJD Start
59364.29739097
MJD End
59364.3010946737
Exposure time (s)
320.0
Validation level
1
Tau 0: Coherence time (s)
0.0047415
Ambient temperature (°C)
10.22
Seeing (arcsec)
0.655
Observation
ID
47463
Category
science
Program ID
105.20B2.002
Program Title
THE GALACTIC CENTER AT UNPRECEDENTED RESOLUTION - PROBING GENERAL RELATIVITY WITH GRAVITY
Program Type
GTO
PI / COI
EISENHAUER/ GILLESSEN/ PERRIN/ STRAUBMEIER/ ROUSSELET-PERRAUT/ GARCIA/ BRANDNER/ GENZEL/ ECKART/ PAUMARD/ CL'ENET/ GAO/ HABIBI/ HORROBIN/ KERVELLA/ OTT/ WIDMANN/ VON FELLENBERG/ HENNING/ PFUHL/ WAISBERG/ DEXTER/ DE ZEEUW/ AMORIM
Target
ID
35598
Name
IRS16C
RA
266.417116666667
DEC
-29.0076491944444
Instrument
Interferometer
VLTI
Instrument
GRAVITY_FT
Instrument mode
LOW
Instrument sub-mode
DUAL
Stations
U1 U2 U3 U4
Projected baselines
Baseline Length start Length end Angle start Angle end
U1-U2 55.3870 55.2470 33.0000 33.4000
U1-U3 99.8450 99.5170 39.3000 39.8000
U1-U4 124.9890 124.2240 68.1110 68.6650
U2-U3 45.2180 45.0290 47.1000 47.6000
U2-U4 85.8510 85.2840 89.9180 90.6130
U3-U4 60.9700 60.7040 120.1690 121.0100
Header: used keywords
Key Value
HIERARCH ESO OBS PROG ID 105.20B2.002
HIERARCH ESO DPR CATG SCIENCE
HIERARCH ESO DPR TYPE OBJECT,DUAL
MJD-OBS 59364.29739097
HIERARCH ESO DPR TECH INTERFEROMETRY,WOLLASTON
HIERARCH ESO OBS TARG NAME IRS16C
HIERARCH ESO INS SOBJ NAME S2
RA 266.41672
DEC -29.00717
HIERARCH ESO INS SPEC RES LOW
HIERARCH ESO INS POLA MODE SPLIT
HIERARCH ESO ISS CONF NTEL 4
HIERARCH ESO ISS CONF STATION1 U1
HIERARCH ESO ISS CONF STATION2 U2
HIERARCH ESO ISS CONF STATION3 U3
HIERARCH ESO ISS CONF STATION4 U4
EXPTIME 342.0
HIERARCH ESO DET2 SEQ1 DIT 10.0
HIERARCH ESO DET2 NDIT 32
HIERARCH ESO ISS PBL12 START 55.387
HIERARCH ESO ISS PBL12 END 55.247
HIERARCH ESO ISS PBLA12 START 33.0
HIERARCH ESO ISS PBLA12 END 33.4
HIERARCH ESO ISS PBL13 START 99.845
HIERARCH ESO ISS PBL13 END 99.517
HIERARCH ESO ISS PBLA13 START 39.3
HIERARCH ESO ISS PBLA13 END 39.8
HIERARCH ESO ISS PBL14 START 124.989
HIERARCH ESO ISS PBL14 END 124.224
HIERARCH ESO ISS PBLA14 START 68.111
HIERARCH ESO ISS PBLA14 END 68.665
HIERARCH ESO ISS PBL23 START 45.218
HIERARCH ESO ISS PBL23 END 45.029
HIERARCH ESO ISS PBLA23 START 47.1
HIERARCH ESO ISS PBLA23 END 47.6
HIERARCH ESO ISS PBL24 START 85.851
HIERARCH ESO ISS PBL24 END 85.284
HIERARCH ESO ISS PBLA24 START 89.918
HIERARCH ESO ISS PBLA24 END 90.613
HIERARCH ESO ISS PBL34 START 60.97
HIERARCH ESO ISS PBL34 END 60.704
HIERARCH ESO ISS PBLA34 START 120.169
HIERARCH ESO ISS PBLA34 END 121.01
HIERARCH ESO ISS AMBI TAU0 START 0.004305
HIERARCH ESO ISS AMBI TAU0 END 0.005178
HIERARCH ESO ISS AMBI TEMP 10.22
HIERARCH ESO ISS AMBI FWHM START 0.63
HIERARCH ESO ISS AMBI FWHM END 0.68
HIERARCH ESO FT ROBJ NAME IRS16C
HIERARCH ESO FT ROBJ ALPHA 174540.1080
HIERARCH ESO FT ROBJ DELTA -290027.5371